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Table 3 Conditional Logistic Regression model for matched cases and controls, Univariate Analysis, The odds ratio (OR), the 95% confidence index (CI 95%) and the p value are displayed

From: Decreased relative risk of pneumococcal pneumonia during the last decade, a nested case-control study

Variable

OR

CI 95%

p value

CAP1 versus CAP2 Períod

1.23

0.30 to 1.80

0.006

Sex

0.62

−0.22 to 1.47

0.148

Nursing Home

−1.93

−4.00 to 0.14

0.067

PSI = 5

0.88

−0.01 to 1.77

0.053

CURB 65

0.26

− 0.11 to 0.64

0.168

Positive blood cultures

2.80

1.26 to 4.35

< 0.001

Positive sputum

2.44

0.20 to 4.67

0.033

Admitted to general ward

1.63

0.60 to 2.66

0.002

Outpatients

−1.85

−3.03 to −0.68

0.002

Admitted to the ICU

−0.19

−1.60 to 1.23

0.800

Decesed

0.89

−0.20 to 1.99

0.110

Pneumococcal vaccination

−0.25

−1.46 to 0.95

0.680